In The National Map Viewer, under "Other Featured Data" - viewer.nationalmap.gov/beta (or live viewer), Along with TNM base data overlays, there are several featured data mashups from other Science, Hazards, and Land Management programs.
Challenge:
1. Give making a mashup with one of these services a try
2. Copy your link or Print PDF in the upper right of the viewer
3. Submit your idea as part of the mashathon:
USGS
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The USGS Center for Integrated Data Analytics - cida.usgs.gov - created this prototype in Summer 2010 for The National Map Viewer Framework in OpenLayers. It calls WMS or Tiled services, in similar style to TNM.
To use, extract the attached zip, and double-click index.html.
This is a seeder starter OpenLayers prototype to anyone else who wants to download the code and modify. Maybe could go on "github".
Recommended
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In 2010, the USGS Community for Data Integration had a goal to incorporate new National Map base data layer services in existing mapping applications and document case studies as a demonstration of using these corporate data assets. The attached ArcMap MXD Templates were created as palettes to drag and drop services from this MXD into scientist MXDs to make mashup within ArcMap.
For static and stable services, this model
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The Biological Informatics Program has rewritten the National Parks Lichens Map Viewer to use base map layers from TNM. The new viewer is written using the Google API and in addition to using TNM base maps it will also bring in the GAP land cover dataset. Future plans are to add the USGS Vegetation Characterization Program's data to the viewer. These mashups will provide the research scientist a very comprehensive look
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http://viewer.nationalmap.gov/example/services.html
This simple code makes it easy for a another user to see all the exact service URLs grouped logically as laid out in The National Map viewer for another developer to copy to use to embed in their application.
This page uses the DOJO Javascript framework to call the JSON configuration file in use by the viewer or any instance of the viewer. The JSON Configuration file,
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In 2006, the USGS Eastern Geographic Science Center began a joint project to develop a custom application to provide enhanced public access to USGS’s National Land Cover Database (NLCD). The resulting Land Cover Analysis Tool (LCAT) allows users to quickly locate, display, and download data from the National Land Cover Dataset (NLCD) , including the recently developed NLCD Change Product, which displays changes in land
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The National Fish Habitat Action Plan map and data web tool was developed to enable users to see multiple views depicting the condition of stream and coastal habitats across the country that was recently released in the report "Through a Fish's Eye: The Status of Fish Habitat In The United States 2010 Report". The map viewer also provides access to detailed information at finer scales, as well as the option to download
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http://water.usgs.gov/osw/floods/today/BPNM_measurement.html
In response to dangerous flood levels near the confluence of the Ohio and Mississippi Rivers, the US Army Corps of Engineers (USACE) activated the Birds Point-New Madrid floodway at 10:03 pm on May 2, 2011 by detonating explosives along a stretch of the Mississippi River levee just downstream of Cairo, Illinois. The resulting inflow of water into the 130,000
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The Indiana Geographic Information Council GIS Response CORPS Flex Viewer is created for enhancing accessibility to geospatial applications, technologies, and products to assist local government GIS staff in support of their local Emergency Management Practitioners in the event of an emergency.
http://mccullough-consulting.net/IGICResponseCorps/index.html
USGS Stream gages are displayed from NHSS mapserver. U.S.Topo
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This map uses The National Map services from the USGS for the base map, and a service with the 2001 National Land Cover Dataset. The National Map base map services are published by The National Map, while the NLCD service was published by ESRI using USGS data.

Any Map, Application, Tool, Mashup, Viewer, etc. that uses The National Map or National Atlas data, services or tools in a new or innovative way - any Tool, Client, Map, Mobile, Crowdsourcing, augmented reality, 3D, etc.. This category is about applying technology for new uses.

Any Map, Application, Tool, Mashup, Viewer, etc. that uses The National Map or National Atlas data, services or tools that solves problems on a local, tribal, or regional project level in any domain (science, energy, emergency, recreation, health, land use or planning, etc.)